1429878739 has 2 divisors, whose sum is σ = 1429878740. Its totient is φ = 1429878738.

The previous prime is 1429878701. The next prime is 1429878757. The reversal of 1429878739 is 9378789241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1429878739 - 2²¹ = 1427781587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1429878799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714939369 + 714939370.

It is an arithmetic number, because the mean of its divisors is an integer number (714939370).

Almost surely, 2^1429878739 is an apocalyptic number.

1429878739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429878739 is an equidigital number, since it uses as much as digits as its factorization.

1429878739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The square root of 1429878739 is about 37813.7374376033. The cubic root of 1429878739 is about 1126.5913253406.

The spelling of 1429878739 in words is "one billion, four hundred twenty-nine million, eight hundred seventy-eight thousand, seven hundred thirty-nine".